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Finding the Fourth Proportional to 64,977.62, 97,478.57 and 20,592.45

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Solution

The fourth proportional to 64,977.62, 97,478.57 and 20,592.45 is: 30,892.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,977.62 : 97,478.57 = 20,592.45 : x
  2. Step 2: Convert to fraction form
    64,977.62/97,478.57 = 20,592.45/x
  3. Step 3: Cross multiply
    64,977.62x = 97,478.57 × 20,592.45
  4. Step 4: Simplify right side
    64,977.62x = 2,007,322,630.28
  5. Step 5: Solve for x
    x = 2,007,322,630.28/64,977.62
  6. Step 6: Final answer
    x = 30,892.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.